!!################################ !!ALSA Information Script v 0.5.1 !!################################ !!Script ran on: Sat Feb 5 20:00:03 UTC 2022 !!Linux Distribution !!------------------ ID_LIKE=debian !!DMI Information !!--------------- Manufacturer: Product Name: Product Version: Firmware Version: System SKU: Board Vendor: Board Name: !!ACPI Device Status Information !!--------------- !!Kernel Information !!------------------ Kernel release: 5.10.7-v7 Operating System: GNU/Linux Architecture: armv7l Processor: unknown SMP Enabled: Yes !!ALSA Version !!------------ Driver version: k5.10.7-v7 Library version: 1.2.4 Utilities version: 1.1.3 !!Loaded ALSA modules !!------------------- snd_bcm2835 (card 0) snd_bcm2835 (card 1) !!Sound Servers on this system !!---------------------------- Pulseaudio: Installed - Yes (/usr/bin/pulseaudio) Running - Yes !!Soundcards recognised by ALSA !!----------------------------- 0 [b1 ]: bcm2835_hdmi - bcm2835 HDMI 1 bcm2835 HDMI 1 1 [Headphones ]: bcm2835_headphonbcm2835 Headphones - bcm2835 Headphones bcm2835 Headphones !!PCI Soundcards installed in the system !!-------------------------------------- !!Modprobe options (Sound related) !!-------------------------------- snd_pcsp: index=-2 snd_atiixp_modem: index=-2 snd_intel8x0m: index=-2 snd_via82xx_modem: index=-2 snd_bcm2835: enable_compat_alsa=0 snd_bcm2835: enable_hdmi=1 !!Loaded sound module options !!--------------------------- !!Module: snd_bcm2835 enable_compat_alsa : N enable_hdmi : Y enable_headphones : Y force_bulk : N !!Module: snd_bcm2835 enable_compat_alsa : N enable_hdmi : Y enable_headphones : Y force_bulk : N !!Sysfs card info !!--------------- !!Card: /sys/class/sound/card0 Driver: /sys/bus/platform/drivers/bcm2835_audio Tree: !!Card: /sys/class/sound/card1 Driver: /sys/bus/platform/drivers/bcm2835_audio Tree: !!ALSA Device nodes !!----------------- crw-rw---- 1 root audio 116, 0 Feb 5 19:52 /dev/snd/controlC0 crw-rw---- 1 root audio 116, 32 Feb 5 19:52 /dev/snd/controlC1 crw-rw---- 1 root audio 116, 16 Feb 5 19:52 /dev/snd/pcmC0D0p crw-rw---- 1 root audio 116, 48 Feb 5 19:52 /dev/snd/pcmC1D0p crw-rw---- 1 root audio 116, 1 Feb 5 19:50 /dev/snd/seq crw-rw---- 1 root audio 116, 33 Feb 5 19:52 /dev/snd/timer /dev/snd/by-path: total 0 drwxr-xr-x 2 root root 60 Feb 5 19:52 . drwxr-xr-x 3 root root 180 Feb 5 19:51 .. lrwxrwxrwx 1 root root 12 Feb 5 19:52 platform-bcm2835_audio -> ../controlC0 !!Aplay/Arecord output !!-------------------- APLAY **** List of PLAYBACK Hardware Devices **** card 0: b1 [bcm2835 HDMI 1], device 0: bcm2835 HDMI 1 [bcm2835 HDMI 1] Subdevices: 2/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 card 1: Headphones [bcm2835 Headphones], device 0: bcm2835 Headphones [bcm2835 Headphones] Subdevices: 3/4 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 ARECORD **** List of CAPTURE Hardware Devices **** !!Amixer output !!------------- !!-------Mixer controls for card b1 Card hw:0 'b1'/'bcm2835 HDMI 1' Mixer name : 'Broadcom Mixer' Components : '' Controls : 2 Simple ctrls : 1 Simple mixer control 'HDMI',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback -887 [88%] [-8.87dB] [on] !!-------Mixer controls for card Headphones Card hw:1 'Headphones'/'bcm2835 Headphones' Mixer name : 'Broadcom Mixer' Components : '' Controls : 2 Simple ctrls : 1 Simple mixer control 'Headphone',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined Playback channels: Mono Limits: Playback -10239 - 400 Mono: Playback -918 [88%] [-9.18dB] [on] !!Alsactl output !!-------------- --startcollapse-- state.b1 { control.1 { iface MIXER name 'HDMI Playback Volume' value -887 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -887 } } control.2 { iface MIXER name 'HDMI Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } state.Headphones { control.1 { iface MIXER name 'Headphone Playback Volume' value -918 comment { access 'read write' type INTEGER count 1 range '-10239 - 400' dbmin -9999999 dbmax 400 dbvalue.0 -918 } } control.2 { iface MIXER name 'Headphone Playback Switch' value true comment { access 'read write' type BOOLEAN count 1 } } } --endcollapse-- !!All Loaded Modules !!------------------ bcm2835_codec bcm2835_isp bcm2835_mmal_vchiq bcm2835_v4l2 bluetooth bnep br_netfilter brcmfmac brcmutil bridge btbcm cdc_acm cfg80211 chacha_neon curve25519_neon ecc ecdh_generic fixed hci_uart ip6_udp_tunnel ip_tables iptable_filter iptable_nat ipv6 libblake2s libblake2s_generic libchacha20poly1305 libcurve25519_generic llc mc nf_conntrack nf_conntrack_netlink nf_defrag_ipv4 nf_defrag_ipv6 nf_nat nfnetlink overlay poly1305_arm raspberrypi_hwmon rfcomm rfkill sha256_generic snd snd_bcm2835 snd_pcm snd_timer stp udp_tunnel uio uio_pdrv_genirq v4l2_mem2mem vc_sm_cma veth videobuf2_common videobuf2_dma_contig videobuf2_memops videobuf2_v4l2 videobuf2_vmalloc videodev wireguard x_tables xt_MASQUERADE xt_addrtype xt_comment xt_conntrack xt_nat xt_tcpudp !!ALSA/HDA dmesg !!-------------- [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 240555 [ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 bcm2708_fb.fbwidth=1280 bcm2708_fb.fbheight=720 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=PARTUUID=12a433e8-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait [ 0.000000] Kernel parameter elevator= does not have any effect anymore. -- [ 8.287460] videodev: Linux video capture interface: v2.00 [ 8.379746] snd_bcm2835: module is from the staging directory, the quality is unknown, you have been warned. [ 8.406195] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned. [ 8.410204] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned. [ 8.415979] bcm2835_audio bcm2835_audio: card created with 4 channels [ 8.426815] bcm2835_mmal_vchiq: module is from the staging directory, the quality is unknown, you have been warned. [ 8.452104] bcm2835_audio bcm2835_audio: card created with 4 channels [ 8.454583] bcm2835_isp: module is from the staging directory, the quality is unknown, you have been warned. !!Packages installed !!-------------------- ii alsa-utils 1.1.3-1 armhf Utilities for configuring and using ALSA